A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6240-01-605-8096
NSN 5930-01-566-4562
NSN 5950-01-115-4323
NSN 6130-01-546-1011
NSN 5945-01-193-7930
NSN 6220-00-169-2567
NSN 6110-01-013-9313
NSN 6135-01-435-8451
NSN 5920-00-886-7896
NSN 5935-01-227-1940
NSN 5975-01-303-4239
NSN 5935-00-700-1002